Mold for cast-welding rail bonds



April 20, 1926.

J. C. LINCOLN MOLD FOR CAST WELDING' RAIL BONDS Original il May 1916 4 .u 11: 1 1 I I Y 11v YVEN' TOR, JOHN CLJNCULN,

W I TNESSES:

Patented Apr. 20, 1926.

sirAfrEs P TENT- fo FF -icE- .'i

JOHN c; LINCOLN, or cLEvELANixoHIo, ssIGNoR; BY MRsNR AssIeNurRn sTo THE UNION TRUsT COMPANY, or CLEVELAND, 0310, A CORPORATION or OHIO.

om) -F0R CAST-WELDING RAIL BONDS.

Application filed my 20, 1916, Serial No. 98,827. Renewed November 1925.

To all whom it may concern:

Be it known that L'Jornv G. LINCOLN, a citizen of the United StatesQresiding-at Cleveland, inthe countyof Guyah'oga and State of Ohio, have inventedq'certain new anduseful"Improvements in ;Molds for. Cast, Velding Bail-'Bonds,'of whichthe following is a specification. Y

invention relates to improvements in molds for east-welding mu bonds and 7 has for its object the provision of 'meansfor readily cast-welding electric bonds upon the ends of railway rails as laid 'in'position for use. 1 In ll! S. Letters Patent No. 1,183,992, granted to me May' 235 191651 have set fort'h a method and certain means for cast-welding rail b ondsfand my present invention is anja'djun'ct' thereto; whereby" the electric bondsai'e fused orweldeddirectly to the bodies "of' adjacent 'rail 'end's? The means therein shown have been improved upon and are therein claimed inisuch:improved fform.

Primarily theproc'ess of cast-welding rail bonds comprises the positioningof the cop- 'per bond withits't'erminal's in. engagement with the adjacent rail ends and surrounded by aoarbon or carbon-faced mold upon three sides; wherein the terminals of the bond may be' fused'*by an intensive heating flame directly "with the bodies of metal of the respective rail-ends; Additional 'metal', such as copper,' ispreferabl'y fused with the terminals or heads of the bond'fand the metal of the" respective xrai'lends 'to'. afford adequate conductivity at; these points.

In practicingthis invention," it' is desirable that theapparatus may be readily atta'ohed'to and detached from the rail ends, whi'le the 'carbon"mo1ds,rzbeing subject to some deterioration: by reason of the intense heat applied thereto, should" accordingly be readily renewable.

My present invention contemplates a mold which is adapted to be readily positioned adjacent to :the rail ends andcomprises a holder for renewable carbon Iblocksof suitable form; the saidvblocks preferably being each constructedhof :two co -acting sections adapted to be'turned individually into positiori for forminga receptacle for a terminal 'of thef'bond'and a: recess for concentratingtheiflhe'at and for cast-welding additional My inventionwill be more readily explalned by making reference to the accompanying drawingsywherelnz Figure -1 isa plan View of two rail ends withmyrimproved mold positioned for use thereon. v

Figure 2 is; aview thereof in side eleva- 7 tion.

Figure dis a cross sectional view online 7 3-3, Figure '1, together with a slightly modified type mold. in sideelevation attached to :the base flange of the rail: H V

Figure. 4 shows 1n perspectivethe metal holder for receivingthe, carbon blocks. 1

Figure 5'shows in perspective, a carbon block comprising two sections assembled for insertion in said holder.

Figure 6 illustrates in side elevation, upon an enlarged 'scaleya bond with its terminals positioned: within the lcarbon-faced mold, one' of said terminals having .been-cast-weld' ed tora rail the. cast-welded bondhead metal beingshownin section.

Throughout the several figures of the draWings'I have employed the samecharacter of. references to indicate similar parts.

The rail ends,.a,' b, which are to be bonded; are. understood to be in position foruse and united; by fish-plates '0 and bolts d.

More 0ften,the bond is attached to the heads of said rails-andtheapparatus of Figures 1 and 2is especially designed therefor. This comprises a bowed spring 6 having suitable terminals '6 adapted tofloe'clampedover the respective rail ends. Midway thereof there is provideda metal; frame f, such'as shown in Figure 4, which is providedwith slides f, adapted to receive the carbon, mold sections and the bottom plate of which: is

notched or slotted atf. to accommodate-the clips gusurrounding the" terminals ofthe bond g The preferred; type; ofibond is well showninFig-iires 1 and 6,,comprising ,copper laminae vwhoseterminals are secured bythree-isided clips 9; andthe-particular carbon blocks or mold sections hereinafter set ;f'orth-, arershaped to accommodate these clip s. and bond terminals, although it will be understood that thestruoture thereofmay be varied as desired; :to accommoudate any other type-of clip and/or] ternrinal.. These carbon blocks h, i; are symmetrical; -presenting v recesses .11., and slotsorrecesses.zf, up'on the copperw ith thebbnd terminal "and rail end. 'four'sides thereof whlch' accommodate the clips 9 and the enclosed terminals of the bond and which afford an'enlarged space, wherein the heating effect of an intensive flame or an electric arc may be concentrated upon the adjacent portion of the rail end maintained in position within the frame.

'Ifhebond g" is inserted with each terminal and with each clip 9 partially protruding abovethe surfaces respectively of the lowermost blocks 71, as is well shown in Figures 1,

s 3 and 6; in which osition an intensive flame,

such as the negative terminal of the electric arc may be applied to the contained portion of the clip and bond terminal, and to the adjacent surface of the rail end; the heat thereof being concentrated within the recess in" of said mold so that the bodies of metal are fused or cast-welded into a unitary electrical conductor, after which, if desired, additional metal, as from a rod of copper, may be subjected to the action of the arc and fused to the rail ends and each bond terminal to afford additional conductive heads g" for the bond, as described in said Letters Patent above referred to. I

j The form of mold shown at the right in Figure 3 is similar to the one just described, except that a suitable bowed enclosing spring 7 is adapted to clamp the mold upon the base flange of the rail in which position the additional body of copper g is made to spread or fuse laterally upon theupper face of the base flange, as shown.

From the foregoing it will be seen that my improved apparatus preferably comprises a frame removably attachable to a suitable portion'of the rail, wherein a carbon mold or molds may be removably inserted, thus affording a carbon-faced mold wherein to cast-weld the bond terminals to the rails. These carbon mold sections or blocks preferably are shaped to supplement one another, inasmuch as they are subject to destructive action of the electrical arc or other heating flame. V I

The lower of said mold sections accommodates and protects the enclosed portion of the bond terminal, while the upper mold section serves to concentrate the heating effect of the arc and afford a cavity or recess wherein the copper may be fused. When symmetrically constructed, it is apparent that the mold sections may individually be turned for use upon four sides so that the lifeof said members is materially lengthened, and they are readily inserted in and removed from the co-acting frame orfslides While I have described the use of carbon mold sections because they are preferable, by reason of the fact that a better union is effected between the copper bonds and steel rail ends, my invention is not necessarily re-- strictedto this material inasmuch as a suitable refractory material of negligible thermal conductivity, such as a highgrade of fire brick for example, might be used for the renewable mold sections under some circumstances.

Having now described the preferred embodiment of my invention, I claim as new and desire to secure by Letters Patent the following 1. A removable mold for cast-welding rail bonds, comprisinga block having a plurality of carbon-faced recesses adapted to receive the terminals of an electric bond; each re-- cess being formed to embrace the bond terminals upon three sides and position them adjacent to the rail ends respectively,'and means for removably clamping the block and bond'in position for cast-welding the bond terminals upon the rail ends, substantially as set forth. V .7

2. A removable mold for cast-welding rail bonds, comprising renewable members havin carbon-faced recesses adapted to receivethe terminals of an electric bond; said recesses being formed to embrace the bond terminals upon three sides and position them adjacent to the rail ends while affording an enlarged opening above said terminals" wherein additional material may be'fused. and means for removably clamping the mold and bond in position for cast-welding the bond terminals upon the rail ends, substam tially as set forth. 7 r

3. A removable mold for cast-Welding rail bonds, comprising a recessed non-combustible frame, a plurality of mold sections carbon blocks adapted to be inserted within said frame and respectively embrace the bond terminals upon three sides and means 1 for securing the frame and mold sectionsremovably upon the rail ends, substantially as set forth. i

5. A mold section, comprising a carbon body having symmetrical recesses upon a plurality of its sides, wherebysaid section may be turned for use" upon different sides, substantially asset forth. 5

6. A multiple mold for electric bonds, comprising a plurality of relatively'non-conductive symmetrical sections formed with coacting lateral recesses upon a plurality of their sides; the one being'formed to -fit the terminal of the electricbond and the other being shaped to afford an enlarged cavity adjacent thereto, whereby the bond may be positioned with its terminals engaging the rail ends, substantially as set forth.

7. A support and mold for cast-Welding rail bonds, comprising a metallic frame recessed to receive the bond terminals, means for temporarily attaching it to the rail ends, and a renewable carbon mold disposed Within the frame, substantially as set forth.

8. A support and mold for cast-welding rail bonds, comprising a recessed metallic frame for accommodating the bond termi nals, means for temporarily attaching it to the rails, and a recessed mold member registering approximately with the recesses of the frame but with larger recesses wherein the bond terminals maybe cast-Welded to the rails, substantially as set forth.

9. A detachable support and mold for cast-Welding rail bonds, comprising a reoessed metallic base adapted to receive the bond terminals, means for temporarily at taching it to the rail ends, and a recessed renewable carbon-faced mold member held upon said base in position for cast-Welding an enlarged terminal connection to the bond and rail end, substantially as set forth.

10. A mold for cast-welding a bond to a rail comprising a frame portion, renewable refractory material disposed within said frame portion to form a portion of the walls of an open top mold cavity, an opening in said frame portion to receive a bond end and to permit said bond end to extend into said mold cavity, said frame portion being adapted to support said bond end in operative position within said mold cavity.

11. A mold for cast-welding a bond to a rail comprising a plurality of renewable refractory members assembled to form a portion of the walls of an open top mold cavity, said refractory members being arranged to receive a bond end and to permit said bond end to extend into said cavity, and means for maintaining said members in assembled relation, said means being adapted to support said bond end in operative position within said mold cavity. 7

In testimony whereof I afiix my signature.

JOHN G. LINCOLN. 1 5. 

